| Message ID | 1416569367-29409-3-git-send-email-lorenzo.pieralisi@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
On Fri, Nov 21, 2014 at 11:29:26AM +0000, Lorenzo Pieralisi wrote: > diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c > index b1315e1..dc2ed4d 100644 > +++ b/drivers/pci/host/pci-mvebu.c > @@ -101,9 +101,7 @@ struct mvebu_pcie { > struct mvebu_pcie_port *ports; > struct msi_chip *msi; > struct resource io; > - char io_name[30]; > struct resource realio; > - char mem_name[30]; > struct resource mem; > struct resource busn; > int nports; > @@ -722,18 +720,9 @@ static int mvebu_pcie_setup(int nr, struct pci_sys_data *sys) > { > struct mvebu_pcie *pcie = sys_to_pcie(sys); > int i; > - int domain = 0; > > -#ifdef CONFIG_PCI_DOMAINS > - domain = sys->domain; > -#endif > - > - snprintf(pcie->mem_name, sizeof(pcie->mem_name), "PCI MEM %04x", > - domain); > - pcie->mem.name = pcie->mem_name; > - > - snprintf(pcie->io_name, sizeof(pcie->io_name), "PCI I/O %04x", domain); > - pcie->realio.name = pcie->io_name; > + pcie->mem.name = "PCI MEM"; > + pcie->realio.name = "PCI I/O"; > > if (request_resource(&iomem_resource, &pcie->mem)) > return 0; For the mvebu section: Reviewed-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Jason -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 89c4b5c..29544f0 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1292,6 +1292,9 @@ config PCI_DOMAINS bool depends on PCI +config PCI_DOMAINS_GENERIC + def_bool PCI_DOMAINS + config PCI_NANOENGINE bool "BSE nanoEngine PCI support" depends on SA1100_NANOENGINE diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h index 7fc4278..112b770 100644 --- a/arch/arm/include/asm/mach/pci.h +++ b/arch/arm/include/asm/mach/pci.h @@ -19,9 +19,6 @@ struct pci_bus; struct device; struct hw_pci { -#ifdef CONFIG_PCI_DOMAINS - int domain; -#endif struct pci_ops *ops; int nr_controllers; void **private_data; @@ -44,9 +41,6 @@ struct hw_pci { * Per-controller structure */ struct pci_sys_data { -#ifdef CONFIG_PCI_DOMAINS - int domain; -#endif struct list_head node; int busnr; /* primary bus number */ u64 mem_offset; /* bus->cpu memory mapping offset */ diff --git a/arch/arm/include/asm/pci.h b/arch/arm/include/asm/pci.h index 7e95d85..585dc33 100644 --- a/arch/arm/include/asm/pci.h +++ b/arch/arm/include/asm/pci.h @@ -18,13 +18,6 @@ static inline int pcibios_assign_all_busses(void) } #ifdef CONFIG_PCI_DOMAINS -static inline int pci_domain_nr(struct pci_bus *bus) -{ - struct pci_sys_data *root = bus->sysdata; - - return root->domain; -} - static inline int pci_proc_domain(struct pci_bus *bus) { return pci_domain_nr(bus); diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c index 17a26c1..76a76ec 100644 --- a/arch/arm/kernel/bios32.c +++ b/arch/arm/kernel/bios32.c @@ -468,9 +468,6 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw, if (!sys) panic("PCI: unable to allocate sys data!"); -#ifdef CONFIG_PCI_DOMAINS - sys->domain = hw->domain; -#endif sys->busnr = busnr; sys->swizzle = hw->swizzle; sys->map_irq = hw->map_irq; diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c index b1315e1..dc2ed4d 100644 --- a/drivers/pci/host/pci-mvebu.c +++ b/drivers/pci/host/pci-mvebu.c @@ -101,9 +101,7 @@ struct mvebu_pcie { struct mvebu_pcie_port *ports; struct msi_chip *msi; struct resource io; - char io_name[30]; struct resource realio; - char mem_name[30]; struct resource mem; struct resource busn; int nports; @@ -722,18 +720,9 @@ static int mvebu_pcie_setup(int nr, struct pci_sys_data *sys) { struct mvebu_pcie *pcie = sys_to_pcie(sys); int i; - int domain = 0; -#ifdef CONFIG_PCI_DOMAINS - domain = sys->domain; -#endif - - snprintf(pcie->mem_name, sizeof(pcie->mem_name), "PCI MEM %04x", - domain); - pcie->mem.name = pcie->mem_name; - - snprintf(pcie->io_name, sizeof(pcie->io_name), "PCI I/O %04x", domain); - pcie->realio.name = pcie->io_name; + pcie->mem.name = "PCI MEM"; + pcie->realio.name = "PCI I/O"; if (request_resource(&iomem_resource, &pcie->mem)) return 0; diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c index dfed00a..6790b87 100644 --- a/drivers/pci/host/pcie-designware.c +++ b/drivers/pci/host/pcie-designware.c @@ -502,9 +502,6 @@ int __init dw_pcie_host_init(struct pcie_port *pp) dw_pci.private_data = (void **)&pp; pci_common_init_dev(pp->dev, &dw_pci); -#ifdef CONFIG_PCI_DOMAINS - dw_pci.domain++; -#endif return 0; } diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c index 61158e0..b6b859e 100644 --- a/drivers/pci/host/pcie-rcar.c +++ b/drivers/pci/host/pcie-rcar.c @@ -404,9 +404,6 @@ static void rcar_pcie_enable(struct rcar_pcie *pcie) rcar_pci.private_data = (void **)&pcie; pci_common_init_dev(&pdev->dev, &rcar_pci); -#ifdef CONFIG_PCI_DOMAINS - rcar_pci.domain++; -#endif } static int phy_wait_for_ack(struct rcar_pcie *pcie)
Most if not all ARM PCI host controller device drivers either ignore the domain field in the pci_sys_data structure or just increment it every time a host controller is probed, using it as a domain counter. Therefore, instead of relying on pci_sys_data to stash the domain number in a standard location, ARM pcibios code can be moved to the newly introduced generic PCI domains code, implemented in commits: commit 41e5c0f81d3e676d671d96a0a1fafb27abfbd9 ("of/pci: Add pci_get_new_domain_nr() and of_get_pci_domain_nr()") commit 670ba0c8883b576d0aec28bd7a838358a4be1 ("PCI: Add generic domain handling") ARM code is made to select PCI_DOMAINS_GENERIC by default, which builds core PCI code that assigns the domain number through the generic function: void pci_bus_assign_domain_nr(...) that relies on a DT property to define the domain number or falls back to a counter according to a predefined logic; its usage replaces the current domain assignment code in PCI host controllers present in the kernel. Acked-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Phil Edworthy <phil.edworthy@renesas.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Phil Edworthy <phil.edworthy@renesas.com> Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Cc: Jingoo Han <jg1.han@samsung.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Mohit Kumar <mohit.kumar@st.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Tested-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Yijing Wang <wangyijing@huawei.com> --- arch/arm/Kconfig | 3 +++ arch/arm/include/asm/mach/pci.h | 6 ------ arch/arm/include/asm/pci.h | 7 ------- arch/arm/kernel/bios32.c | 3 --- drivers/pci/host/pci-mvebu.c | 15 ++------------- drivers/pci/host/pcie-designware.c | 3 --- drivers/pci/host/pcie-rcar.c | 3 --- 7 files changed, 5 insertions(+), 35 deletions(-)